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3 years ago

How can a large construction project impact water quality, supply or flow?

Physics

1 answer:

Korolek [52]3 years ago

3 0

Answer:

Construction also impacts the community’s water quality. During the construction phase, pollutants can end up in the water supply. Once construction is over, the water quality can still be a problem due to an increased demand for water, as well as increased pollution due to additional residents.

Explanation:

Hope This Could be of some use

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A watermelon is blown into three pieces by a large firecracker. Two pieces of equal mass m fly away perpendicular to one another

laiz [17]

Answer

given,

watermelon blown into three pieces

two pieces of mass m

both pieces speed = v = 31 m/s

mass of third piece = 3 m

using conservation of mass

$0 = m V \hat{i} + m V \hat{j} + (3\ m)V_3$

$V_3 = \dfrac{V}{3}(-\hat{i}-\hat{j})$

$V_3 = \dfrac{V}{3}\sqrt{1^2+1^2}$

$V_3 = \dfrac{V}{3}\sqrt{2}$

velocity of third component

$V_3 = \dfrac{31}{3}\sqrt{2}$

$V_3 = 14.61\ m/s$

angle

$\theta = tan^{-1}(\dfrac{-1}{-1})$

$\theta = tan^{-1}(1)$

$\theta = 45^0$

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4 years ago

What is surface tension

kupik [55]

Answer:

Surface tension is a fundamental property of the surface of liquid. Surface tension is responsible for the curvature of the surfaces of air and liquids. Surface tension is responsible for the ability of some solid objects to “float” on the surface of a liquid.

hope it helps

<h2>stay safe healthy and happy.</h2>

7 0

3 years ago

Read 2 more answers

You are part of the designing team for a new solar thermal power plant. The plant will use thermal energy storage to produce ele

Harman [31]

Explanation:

Below is an attachment containing the solution.

4 0

3 years ago

If a honeybee is flying 7.0 m/s, what is the kinetic energy (Joules) if its mass is 0.1 g?

svetlana [45]

Answer:

KINETIC ENERGY=K.E=0.00245 Joules ≈ 0.003 Joules

Explanation:

mass=m=0.1g=0.0001kg

velocity=v=7.0m/s

kinetic energy=K.E.=?

as we know that

$kinetic energy=\frac{1}{2}mv^2\\ putting values\\kinetic energy=\frac{1}{2}(0.0001kg)(7.0m/s)^2\\ kinetic energy=\frac{1}{2} 0.0049joules\\kinetic energy= 0.00245Newton meter or joules$

hope it will help ^_^

5 0

3 years ago

Blue light has a typical frequency of 6.67 x 10 14 1014 Hz. What is the wavelength associated with this frequency?

DerKrebs [107]

First recall the equation that relates frequency to wavelength:

v = fw

Note that the v is the speed of light, a constant. Now plug in the information we know!

(3×10^8) = (6.67 × 10^14) w

Hit the numbers on the calculator and you'll get the wavelength, w. If you comment your answer I'll check it for you. :)

5 0

4 years ago

Read 2 more answers